The statement with the greatest acceptance and predictive value from scientists s the: A) hypothesis B) induction C) observation D) scientific theory 1 5) After years of observing, a homemaker concluded, “Ugly rugs never wear out. ” This person has made a statement that is: A) a hypothesis B) conjecture C) a scientific law D) theory Short Answer (5 Questions = 5 points each) 16) Provide an example of a scientific law. A scientific law is a relationship between quantities, usually described by an equation in the physical sciences; is more important and describes a wider range on phenomena than a scientific principle.
An example of a scientific law would be the law of conservation of energy. This law states that energy is never created or destroyed. 17) Are all theories always completely accepted or completely rejected? Explain. A theory is a broad, detailed explanation that guides the development of hypotheses and interpretations of experiments in a field of study. A theory can be either accepted or rejected. If the theory is proved correct by many scientists over a period of time, it can become a scientific law.
A theory can be rejected if the outcome of the experiment does not meet the hypotheses. 18) Suppose you want to know if objects with different masses fall to the ground at efferent rates. State a hypothesis about falling objects. Mass object. 19) Explain how you can test the hypothesis in Question 18. What will be the manipulated variable in your experiment? What will be the responding variable? The manipulated variable would be the objects with different masses. The responding variable would be the time it took for the object to hit the ground. 0) Doughnut consumption and weight gain… Is there a link between the two? How would you set up your experiment to test this idea? Use the experimental design template below to answer this question. A) What is your hypothesis? B) How would you conduct the experiment to test your hypothesis? C) Now that you have come up with an experiment to test your hypothesis, are there any other variables aside from the number of doughnuts consumed and weight that should be considered when you are interpreting your data?
Yes/No. Justify your answer. Answers may vary. Hypothesis: If you eat doughnuts then you will gain weight. Experiment: Gather two human subjects. Record the weight of both subjects. Subject A will receive an eating schedule for a three week period. The diet will include 2 doughnuts snacks three times a day. Subject B will receive the same eating schedule UT he will receive an apple three times a day instead of doughnuts. After three weeks, both subjects will be weighed again to see if there is a difference.
Other Variables: Yes; there are other variables to consider. Is the entire experiment controlled? If not, then you have to account the physical activity of the subjects as well as their normal eating schedule aside from the doughnut/apple snacks. If the experiment is controlled where the physical activity and food consumption is the same, you would have to consider the physiological factors (genetics, metabolism, etc. ) of each subject.